./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69211a6a9810795915a638c419bc12fc6aa00ac5 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 21:13:52,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:13:52,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:13:52,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:13:52,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:13:52,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:13:52,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:13:52,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:13:52,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:13:52,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:13:52,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:13:52,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:13:52,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:13:52,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:13:52,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:13:52,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:13:52,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:13:52,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:13:52,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:13:52,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:13:52,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:13:52,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:13:52,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:13:52,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:13:52,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:13:52,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:13:52,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:13:52,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:13:52,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:13:52,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:13:52,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:13:52,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:13:52,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:13:52,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:13:52,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:13:52,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:13:52,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:13:52,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:13:52,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:13:52,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:13:52,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:13:52,291 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:13:52,315 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:13:52,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:13:52,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:13:52,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:13:52,318 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:13:52,319 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:13:52,319 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:13:52,319 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:13:52,319 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:13:52,320 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:13:52,321 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:13:52,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:13:52,321 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:13:52,322 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:13:52,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:13:52,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:13:52,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:13:52,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:13:52,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:13:52,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:13:52,324 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:13:52,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:13:52,325 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:13:52,325 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:13:52,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:13:52,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:13:52,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:13:52,326 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:13:52,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:13:52,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:13:52,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:13:52,328 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:13:52,329 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:13:52,330 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69211a6a9810795915a638c419bc12fc6aa00ac5 [2019-11-28 21:13:52,630 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:13:52,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:13:52,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:13:52,648 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:13:52,648 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:13:52,649 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2019-11-28 21:13:52,711 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d982f19d/ea0918266001439c98a5dc2ed64d941d/FLAG6359f516b [2019-11-28 21:13:53,254 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:13:53,255 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2019-11-28 21:13:53,277 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d982f19d/ea0918266001439c98a5dc2ed64d941d/FLAG6359f516b [2019-11-28 21:13:53,538 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d982f19d/ea0918266001439c98a5dc2ed64d941d [2019-11-28 21:13:53,543 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:13:53,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:13:53,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:13:53,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:13:53,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:13:53,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:13:53" (1/1) ... [2019-11-28 21:13:53,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa27838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:53, skipping insertion in model container [2019-11-28 21:13:53,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:13:53" (1/1) ... [2019-11-28 21:13:53,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:13:53,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:13:54,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:13:54,030 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:13:54,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:13:54,187 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:13:54,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:54 WrapperNode [2019-11-28 21:13:54,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:13:54,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:13:54,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:13:54,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:13:54,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:54" (1/1) ... [2019-11-28 21:13:54,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:54" (1/1) ... [2019-11-28 21:13:54,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:13:54,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:13:54,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:13:54,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:13:54,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:54" (1/1) ... [2019-11-28 21:13:54,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:54" (1/1) ... [2019-11-28 21:13:54,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:54" (1/1) ... [2019-11-28 21:13:54,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:54" (1/1) ... [2019-11-28 21:13:54,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:54" (1/1) ... [2019-11-28 21:13:54,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:54" (1/1) ... [2019-11-28 21:13:54,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:54" (1/1) ... [2019-11-28 21:13:54,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:13:54,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:13:54,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:13:54,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:13:54,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:13:54,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:13:54,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:13:54,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:13:54,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:13:55,276 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:13:55,276 INFO L287 CfgBuilder]: Removed 116 assume(true) statements. [2019-11-28 21:13:55,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:13:55 BoogieIcfgContainer [2019-11-28 21:13:55,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:13:55,278 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:13:55,279 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:13:55,282 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:13:55,283 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:13:55,284 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:13:53" (1/3) ... [2019-11-28 21:13:55,285 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64c7b06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:13:55, skipping insertion in model container [2019-11-28 21:13:55,285 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:13:55,286 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:13:54" (2/3) ... [2019-11-28 21:13:55,286 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64c7b06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:13:55, skipping insertion in model container [2019-11-28 21:13:55,286 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:13:55,286 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:13:55" (3/3) ... [2019-11-28 21:13:55,288 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2019-11-28 21:13:55,336 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:13:55,336 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:13:55,336 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:13:55,336 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:13:55,337 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:13:55,337 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:13:55,337 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:13:55,337 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:13:55,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-11-28 21:13:55,381 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2019-11-28 21:13:55,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:13:55,382 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:13:55,391 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:55,391 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:55,391 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:13:55,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-11-28 21:13:55,398 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2019-11-28 21:13:55,398 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:13:55,398 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:13:55,399 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:55,399 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:55,406 INFO L794 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 16#L-1true havoc main_#res;havoc main_#t~ret59, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 18#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 12#L73true main_#t~ret59 := valid_product_#res;main_~tmp~6 := main_#t~ret59;havoc main_#t~ret59; 8#L800true assume 0 != main_~tmp~6; 21#L775true ~switchedOnBeforeTS~0 := 0; 81#L821true havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 38#L842-1true [2019-11-28 21:13:55,406 INFO L796 eck$LassoCheckResult]: Loop: 38#L842-1true assume !false; 19#L658true assume test_~splverifierCounter~0 < 4; 42#L659true test_~tmp~5 := test_#t~nondet55;havoc test_#t~nondet55; 71#L667true assume !(0 != test_~tmp~5); 74#L667-1true test_~tmp___0~1 := test_#t~nondet56;havoc test_#t~nondet56; 50#L677true assume !(0 != test_~tmp___0~1); 32#L677-1true test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 31#L687true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 35#L695-1true havoc __utac_acc__Specification5_spec__2_#t~ret60;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 73#L195true __utac_acc__Specification5_spec__2_#t~ret60 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret60;havoc __utac_acc__Specification5_spec__2_#t~ret60; 65#L831true assume !(0 != ~pumpRunning~0); 51#L110true assume !(0 != ~systemActive~0); 40#L117true havoc __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_#t~ret62, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 7#L939true __utac_acc__Specification5_spec__3_#t~ret61 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret61;havoc __utac_acc__Specification5_spec__3_#t~ret61; 63#L842true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 38#L842-1true [2019-11-28 21:13:55,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:55,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:13:55,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:55,425 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884605524] [2019-11-28 21:13:55,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:55,883 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:55,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:55,885 INFO L82 PathProgramCache]: Analyzing trace with hash 675287606, now seen corresponding path program 1 times [2019-11-28 21:13:55,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:55,885 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882701207] [2019-11-28 21:13:55,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:13:55,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:13:55,944 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882701207] [2019-11-28 21:13:55,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:13:55,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:13:55,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175317765] [2019-11-28 21:13:55,951 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:13:55,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:13:55,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:13:55,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:13:55,968 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2019-11-28 21:13:56,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:13:56,068 INFO L93 Difference]: Finished difference Result 165 states and 233 transitions. [2019-11-28 21:13:56,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:13:56,072 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 233 transitions. [2019-11-28 21:13:56,087 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 106 [2019-11-28 21:13:56,100 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 151 states and 218 transitions. [2019-11-28 21:13:56,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 151 [2019-11-28 21:13:56,106 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 151 [2019-11-28 21:13:56,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 151 states and 218 transitions. [2019-11-28 21:13:56,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:13:56,111 INFO L688 BuchiCegarLoop]: Abstraction has 151 states and 218 transitions. [2019-11-28 21:13:56,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states and 218 transitions. [2019-11-28 21:13:56,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2019-11-28 21:13:56,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-11-28 21:13:56,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 215 transitions. [2019-11-28 21:13:56,155 INFO L711 BuchiCegarLoop]: Abstraction has 149 states and 215 transitions. [2019-11-28 21:13:56,156 INFO L591 BuchiCegarLoop]: Abstraction has 149 states and 215 transitions. [2019-11-28 21:13:56,156 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:13:56,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 215 transitions. [2019-11-28 21:13:56,159 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2019-11-28 21:13:56,159 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:13:56,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:13:56,160 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:56,160 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:56,161 INFO L794 eck$LassoCheckResult]: Stem: 315#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 281#L-1 havoc main_#res;havoc main_#t~ret59, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 282#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 278#L73 main_#t~ret59 := valid_product_#res;main_~tmp~6 := main_#t~ret59;havoc main_#t~ret59; 270#L800 assume 0 != main_~tmp~6; 271#L775 ~switchedOnBeforeTS~0 := 0; 290#L821 havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 358#L842-1 [2019-11-28 21:13:56,161 INFO L796 eck$LassoCheckResult]: Loop: 358#L842-1 assume !false; 372#L658 assume test_~splverifierCounter~0 < 4; 316#L659 test_~tmp~5 := test_#t~nondet55;havoc test_#t~nondet55; 317#L667 assume !(0 != test_~tmp~5); 352#L667-1 test_~tmp___0~1 := test_#t~nondet56;havoc test_#t~nondet56; 353#L677 assume !(0 != test_~tmp___0~1); 369#L677-1 test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 368#L687 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 305#L695-1 havoc __utac_acc__Specification5_spec__2_#t~ret60;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 350#L195 __utac_acc__Specification5_spec__2_#t~ret60 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret60;havoc __utac_acc__Specification5_spec__2_#t~ret60; 351#L831 assume !(0 != ~pumpRunning~0); 330#L110 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 300#L142 assume !(0 == ~pumpRunning~0); 267#L117 havoc __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_#t~ret62, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 268#L939 __utac_acc__Specification5_spec__3_#t~ret61 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret61;havoc __utac_acc__Specification5_spec__3_#t~ret61; 269#L842 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 358#L842-1 [2019-11-28 21:13:56,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:56,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:13:56,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:56,162 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449242689] [2019-11-28 21:13:56,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:56,268 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:56,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:56,269 INFO L82 PathProgramCache]: Analyzing trace with hash -572531389, now seen corresponding path program 1 times [2019-11-28 21:13:56,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:56,269 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611939934] [2019-11-28 21:13:56,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:13:56,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:13:56,290 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611939934] [2019-11-28 21:13:56,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:13:56,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:13:56,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78355320] [2019-11-28 21:13:56,291 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:13:56,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:13:56,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:13:56,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:13:56,295 INFO L87 Difference]: Start difference. First operand 149 states and 215 transitions. cyclomatic complexity: 69 Second operand 3 states. [2019-11-28 21:13:56,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:13:56,449 INFO L93 Difference]: Finished difference Result 248 states and 343 transitions. [2019-11-28 21:13:56,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:13:56,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 248 states and 343 transitions. [2019-11-28 21:13:56,457 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2019-11-28 21:13:56,460 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 248 states to 248 states and 343 transitions. [2019-11-28 21:13:56,460 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 248 [2019-11-28 21:13:56,461 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 248 [2019-11-28 21:13:56,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 248 states and 343 transitions. [2019-11-28 21:13:56,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:13:56,464 INFO L688 BuchiCegarLoop]: Abstraction has 248 states and 343 transitions. [2019-11-28 21:13:56,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states and 343 transitions. [2019-11-28 21:13:56,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2019-11-28 21:13:56,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2019-11-28 21:13:56,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 343 transitions. [2019-11-28 21:13:56,502 INFO L711 BuchiCegarLoop]: Abstraction has 248 states and 343 transitions. [2019-11-28 21:13:56,502 INFO L591 BuchiCegarLoop]: Abstraction has 248 states and 343 transitions. [2019-11-28 21:13:56,502 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:13:56,503 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 248 states and 343 transitions. [2019-11-28 21:13:56,508 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2019-11-28 21:13:56,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:13:56,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:13:56,510 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:56,511 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:56,511 INFO L794 eck$LassoCheckResult]: Stem: 724#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 686#L-1 havoc main_#res;havoc main_#t~ret59, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 687#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 685#L73 main_#t~ret59 := valid_product_#res;main_~tmp~6 := main_#t~ret59;havoc main_#t~ret59; 679#L800 assume 0 != main_~tmp~6; 680#L775 ~switchedOnBeforeTS~0 := 0; 697#L821 havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 767#L842-1 [2019-11-28 21:13:56,512 INFO L796 eck$LassoCheckResult]: Loop: 767#L842-1 assume !false; 842#L658 assume test_~splverifierCounter~0 < 4; 841#L659 test_~tmp~5 := test_#t~nondet55;havoc test_#t~nondet55; 815#L667 assume !(0 != test_~tmp~5); 814#L667-1 test_~tmp___0~1 := test_#t~nondet56;havoc test_#t~nondet56; 808#L677 assume !(0 != test_~tmp___0~1); 807#L677-1 test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 707#L687 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 709#L695-1 havoc __utac_acc__Specification5_spec__2_#t~ret60;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 837#L195 __utac_acc__Specification5_spec__2_#t~ret60 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret60;havoc __utac_acc__Specification5_spec__2_#t~ret60; 751#L831 assume !(0 != ~pumpRunning~0); 752#L110 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 704#L142 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~1, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~1;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 705#L947 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 742#L952 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~1 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 743#L244 assume 0 != isHighWaterLevel_~tmp~1;isHighWaterLevel_~tmp___0~0 := 0; 765#L244-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 766#L250 processEnvironment_#t~ret1 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret1;havoc processEnvironment_#t~ret1; 671#L146 assume !(0 != processEnvironment_~tmp~0); 673#L117 havoc __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_#t~ret62, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 674#L939 __utac_acc__Specification5_spec__3_#t~ret61 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret61;havoc __utac_acc__Specification5_spec__3_#t~ret61; 675#L842 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 767#L842-1 [2019-11-28 21:13:56,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:56,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:13:56,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:56,514 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390173556] [2019-11-28 21:13:56,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:56,666 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:56,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:56,666 INFO L82 PathProgramCache]: Analyzing trace with hash -535419313, now seen corresponding path program 1 times [2019-11-28 21:13:56,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:56,667 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961838793] [2019-11-28 21:13:56,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:13:56,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:13:56,717 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961838793] [2019-11-28 21:13:56,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:13:56,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 21:13:56,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081430044] [2019-11-28 21:13:56,719 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:13:56,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:13:56,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:13:56,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:13:56,720 INFO L87 Difference]: Start difference. First operand 248 states and 343 transitions. cyclomatic complexity: 98 Second operand 5 states. [2019-11-28 21:13:56,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:13:56,980 INFO L93 Difference]: Finished difference Result 923 states and 1283 transitions. [2019-11-28 21:13:56,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 21:13:56,981 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 923 states and 1283 transitions. [2019-11-28 21:13:56,995 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 662 [2019-11-28 21:13:57,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 923 states to 923 states and 1283 transitions. [2019-11-28 21:13:57,006 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 923 [2019-11-28 21:13:57,007 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 923 [2019-11-28 21:13:57,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 923 states and 1283 transitions. [2019-11-28 21:13:57,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:13:57,016 INFO L688 BuchiCegarLoop]: Abstraction has 923 states and 1283 transitions. [2019-11-28 21:13:57,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states and 1283 transitions. [2019-11-28 21:13:57,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 483. [2019-11-28 21:13:57,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2019-11-28 21:13:57,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 655 transitions. [2019-11-28 21:13:57,051 INFO L711 BuchiCegarLoop]: Abstraction has 483 states and 655 transitions. [2019-11-28 21:13:57,051 INFO L591 BuchiCegarLoop]: Abstraction has 483 states and 655 transitions. [2019-11-28 21:13:57,051 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 21:13:57,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 483 states and 655 transitions. [2019-11-28 21:13:57,055 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 354 [2019-11-28 21:13:57,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:13:57,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:13:57,059 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:57,059 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:13:57,060 INFO L794 eck$LassoCheckResult]: Stem: 1916#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1879#L-1 havoc main_#res;havoc main_#t~ret59, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 1880#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1875#L73 main_#t~ret59 := valid_product_#res;main_~tmp~6 := main_#t~ret59;havoc main_#t~ret59; 1867#L800 assume 0 != main_~tmp~6; 1868#L775 ~switchedOnBeforeTS~0 := 0; 1889#L821 havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1957#L842-1 [2019-11-28 21:13:57,060 INFO L796 eck$LassoCheckResult]: Loop: 1957#L842-1 assume !false; 2121#L658 assume test_~splverifierCounter~0 < 4; 2120#L659 test_~tmp~5 := test_#t~nondet55;havoc test_#t~nondet55; 2119#L667 assume !(0 != test_~tmp~5); 2117#L667-1 test_~tmp___0~1 := test_#t~nondet56;havoc test_#t~nondet56; 2116#L677 assume !(0 != test_~tmp___0~1); 2114#L677-1 test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 2097#L687 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2060#L695-1 havoc __utac_acc__Specification5_spec__2_#t~ret60;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 2058#L195 __utac_acc__Specification5_spec__2_#t~ret60 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret60;havoc __utac_acc__Specification5_spec__2_#t~ret60; 2056#L831 assume !(0 != ~pumpRunning~0); 2055#L110 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 2054#L142 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~1, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~1;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 2030#L947 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 2049#L952 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~1 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 2037#L244 assume 0 != isHighWaterLevel_~tmp~1;isHighWaterLevel_~tmp___0~0 := 0; 2036#L244-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 2035#L250 processEnvironment_#t~ret1 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret1;havoc processEnvironment_#t~ret1; 2031#L146 assume !(0 != processEnvironment_~tmp~0); 2032#L117 havoc __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_#t~ret62, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 2127#L939 __utac_acc__Specification5_spec__3_#t~ret61 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret61;havoc __utac_acc__Specification5_spec__3_#t~ret61; 2126#L842 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 2125#L195-1 __utac_acc__Specification5_spec__3_#t~ret62 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret62;havoc __utac_acc__Specification5_spec__3_#t~ret62; 2124#L846 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1957#L842-1 [2019-11-28 21:13:57,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:57,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-28 21:13:57,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:57,061 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495651829] [2019-11-28 21:13:57,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:57,164 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:57,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:57,165 INFO L82 PathProgramCache]: Analyzing trace with hash 858102058, now seen corresponding path program 1 times [2019-11-28 21:13:57,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:57,166 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491490723] [2019-11-28 21:13:57,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:57,182 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:57,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:13:57,183 INFO L82 PathProgramCache]: Analyzing trace with hash 717508720, now seen corresponding path program 1 times [2019-11-28 21:13:57,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:13:57,184 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196279933] [2019-11-28 21:13:57,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:13:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:13:57,265 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:13:57,479 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-11-28 21:14:23,010 WARN L192 SmtUtils]: Spent 25.44 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:14:36,918 WARN L192 SmtUtils]: Spent 13.90 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:14:37,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:14:37 BoogieIcfgContainer [2019-11-28 21:14:37,050 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:14:37,059 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:14:37,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:14:37,060 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:14:37,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:13:55" (3/4) ... [2019-11-28 21:14:37,064 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:14:37,171 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:14:37,171 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:14:37,173 INFO L168 Benchmark]: Toolchain (without parser) took 43628.64 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 306.2 MB). Free memory was 957.7 MB in the beginning and 1.2 GB in the end (delta: -215.4 MB). Peak memory consumption was 90.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:37,173 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:14:37,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 644.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -148.5 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:37,175 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:37,175 INFO L168 Benchmark]: Boogie Preprocessor took 40.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:14:37,176 INFO L168 Benchmark]: RCFGBuilder took 950.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:37,177 INFO L168 Benchmark]: BuchiAutomizer took 41780.25 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 181.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -144.2 MB). Peak memory consumption was 404.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:37,178 INFO L168 Benchmark]: Witness Printer took 112.07 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:37,181 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 644.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -148.5 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 95.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 950.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 41780.25 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 181.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -144.2 MB). Peak memory consumption was 404.9 MB. Max. memory is 11.5 GB. * Witness Printer took 112.07 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 483 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 41.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 40.7s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 442 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 483 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 404 SDtfs, 684 SDslu, 647 SDs, 0 SdLazy, 136 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 657]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=970} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=974, retValue_acc=1, NULL=970, NULL=0, NULL=0, NULL=2948, retValue_acc=0, NULL=0, NULL=0, NULL=2962, NULL=973, methaneLevelCritical=0, NULL=980, tmp=1, tmp___0=0, retValue_acc=0, tmp=0, NULL=2955, NULL=0, NULL=0, NULL=2952, tmp___1=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58980a60=0, NULL=2953, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=976, NULL=2960, NULL=975, \result=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=2958, \result=0, NULL=0, NULL=2951, NULL=0, NULL=0, NULL=972, \result=1, NULL=2950, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@635ee317=0, NULL=2957, \result=0, NULL=2959, NULL=971, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49ed7006=0, NULL=0, NULL=0, tmp=1, \result=1, NULL=2956, NULL=0, tmp=1, retValue_acc=1, tmp___2=56, retValue_acc=1, tmp___0=0, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f808fd4=0, NULL=978, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73ea7233=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a496723=0, NULL=2949, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3137b742=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30f437b2=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c421249=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25913403=0, head=0, NULL=0, NULL=2954, NULL=2963, NULL=977, NULL=0, NULL=2961, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L98] int pumpRunning = 0; [L99] int systemActive = 1; [L447] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L716] int cleanupTimeShifts = 4; [L815] int switchedOnBeforeTS ; [L864] int waterLevel = 1; [L865] int methaneLevelCritical = 0; [L791] int retValue_acc ; [L792] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L798] tmp = valid_product() [L800] COND TRUE \read(tmp) [L820] switchedOnBeforeTS = 0 [L648] int splverifierCounter ; [L649] int tmp ; [L650] int tmp___0 ; [L651] int tmp___1 ; [L652] int tmp___2 ; [L655] splverifierCounter = 0 Loop: [L657] COND TRUE 1 [L659] COND TRUE splverifierCounter < 4 [L665] tmp = __VERIFIER_nondet_int() [L667] COND FALSE !(\read(tmp)) [L675] tmp___0 = __VERIFIER_nondet_int() [L677] COND FALSE !(\read(tmp___0)) [L685] tmp___2 = __VERIFIER_nondet_int() [L687] COND TRUE \read(tmp___2) [L273] systemActive = 1 [L191] int retValue_acc ; [L194] retValue_acc = pumpRunning [L195] return (retValue_acc); [L829] switchedOnBeforeTS = isPumpRunning() [L110] COND FALSE !(\read(pumpRunning)) [L117] COND TRUE \read(systemActive) [L139] int tmp ; [L142] COND TRUE ! pumpRunning [L236] int retValue_acc ; [L237] int tmp ; [L238] int tmp___0 ; [L944] int retValue_acc ; [L947] COND TRUE waterLevel < 2 [L948] retValue_acc = 1 [L949] return (retValue_acc); [L242] tmp = isHighWaterSensorDry() [L244] COND TRUE \read(tmp) [L245] tmp___0 = 0 [L249] retValue_acc = tmp___0 [L250] return (retValue_acc); [L144] tmp = isHighWaterLevel() [L146] COND FALSE !(\read(tmp)) [L835] int tmp ; [L836] int tmp___0 ; [L935] int retValue_acc ; [L938] retValue_acc = waterLevel [L939] return (retValue_acc); [L840] tmp = getWaterLevel() [L842] COND TRUE tmp != 2 [L191] int retValue_acc ; [L194] retValue_acc = pumpRunning [L195] return (retValue_acc); [L844] tmp___0 = isPumpRunning() [L846] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...